Elevator.



MfG. BUNNELL.

ELEVATOR.

APPLICATION FILED ram/13.1909.

4 SHEETS-SHEEN wk 1* a Patented July 13, 1915.

M. G. BUNNELL.

ELEVATOR.

APPLICATION FILED MAY 13, I908.

Patented July 13, 1915.

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4 SHEETSSHEET 2- M. G. BUNNELL.

ELEVATOR.

APPLICATION FILED MAY I3. I908.

L 14mm? 1 Patented July 13, 1915.

4 SHEETSSHEET 3.

M. G. BUNNELLs ELEVATOR. APPLICATION mm MAY 13. 1908. y 1,, 1%,71 m Patented July 13, 1915.

4 SHEETSSHEET 4.

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MORTdN G. BUNNELL, OF PORTER, INDIANA, ASSIGNOB TO AUSTIN MANUFACTURING COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

' ELEVATOR.

Application filed May 13, 1908. Serial No. aaassa To all whom it may concern:

Be it knownth-at I, MORTON G. BUNNnLL, a citizen of. the United States of America, and resident of Porter, Porter county,Indiana, have invented a certain new and useful Improvement in Elevators, of which the following is a specification.

My invention relates to elevatingapparatus for general use, but adaptedinore par-' ticularly for use'in connection with crushers that is to say, machines for crushing rock or other material, and especially machines of this character that are portable.

The'object of my invention is the provision of an improved and highly efficient elevating apparatus that can be readily folded over and above the crusher, when the machine is .to be drawn from one place to another, and which can be as readily raised to a working position.

To the foregoing and other useful ends, my invention consists in matters hereinafter set forth and claimed, and illustrated in the accompanying drawings, in WhlCl1- Figure 1 is a side elevation of a portable- -crushing machine equipped with afolding elevating apparatus embodying the principles of my invention. Fig. 2 is a view similar to Fig. 1, but showing the elevator in a folded condition. Fig. 3 is an enlarged detail side elevation of that portion of the elevatorto which the raising and lowering wires or other flexible connections are attached. Fig. 4 is a detail section on line 44 in Fig. 3. Fig. 5 is a detail plan view of the elevator drive shaft and one of the twobearings in which the same is supported when the elevator is running. Fig. 6 is an enlarged'detail section on line 66 in Fig. 2. Fig. 7 is an enlarged detail section on line 77 in Fig. 2. Fig. 8 is a detail section on line 8-8 in Fig. 7. Fig. 9 is an enlarged detail plan of the Windlass for operating the wire or otherflexible connection by which the elevator is raised and'lowered that is, unfolded and folded. Fig. 10 is a detail horizontal section on line 10-10 in Fig. 2. Fig. 11 is a detail view, showing the device by which the lower section of the folding elevator is supported in position to receive the crushed rock from the hopper of the crusher.

As thus illustrated, the crusher A may be Specification of Letters Patent.

Patented aai is, ears.

of any suitable construction, is mounted on vehicle wheels B, and provided with the usual crushing hopper C. A spout '0 receives the crushed rock from the said hopper and discharges the same in a downward and rearward direction therefrom. A. platform D is supported upon the body of said crusher, and provided with end boards 03, as illustrated. Upright rectangular side frames E are mounted upon said platform,

parallel with each other and longitudinally of the machine. Braces 0 connect the tops of said frames with the forward portion of the machine frame. A Windlass F is also mounted upon the said forward portion of the frame, and provided with a handle f for operating the same. Gearing f connects the handle shaft with the said Windlass, and a dog and ratchet wheel 1''? prevents backward rotation thereof. A. pair of sheaves G are mounted on the upper forward portion ofthe frames E, and a pair of similar sheaves'H are mounted upon the upper rear pdrtion of said frames. Operating wires or cables I are trained over said sheaves and wound at their forward ends upon the windlass F. A couple of stay wires or cables .5 are secured to the upper portions of said frames. The ends of said wires or cables I and .l are secured to the elevator K at it, for operating the same, as will hereinafter more fully appear. The said elevator K comprises an upper frame section and a lower frame section is? hinged or pivoted together at 71: this joint or point of articulation being swingingly connected with the board (Z by means of a pair of links 70', which latter are separated and held against lateral motion by hearing portions k, which are also secured to said end board. A. shaft 76 is provided at the upper end of said elevator, which has a roll k and a sprocket wheel .2 The lower end of said elevator has a shaft in" provided with a roll is A. belt conveyor Ki having suitable buckets is arranged to travel on said upper and lower rolls. Small rolls in for supporting the loaded portion of the elevator are distributed along the length of the upper section of the elevator, and a similar roll 70 is provided on the lower section, for the samepurpose. Upon the lower end of the upper section of the elevator a drive shaft is is crusher.- Thus the operation 0 the crusher. automatically operates the elevator.

. In use, the shaft is is supported in. bearings 7318 on the rear end of the crusher frame. I These bearings havecap blocks that -can .be removed to permit the elevator to fold into the position shown in Fig. 2. In folding, the elevator shaft 70 swings bodily about two axes, one axis beingfthe axis about which the links k swing, and the'other axis being the joint 71?, as shown more clearly in Fig. 2. The lower section of the elevat r framev is held in position by hooks 70 ther on that engage a cross bar 70 on the crusher ,frame or body. The elelvator frame slides up and down on this 'cros's bar, at varying angle, when the'elevator is raised and low- .ered. The wires J limit the upward and outward swing of the elevator, when the same is raised for use.

Theupper section of the levator frame is prpvided with a pair of cross bars'M, as shown in Figs. 3 and- 4, at each side of t e elevator. The front nd of said bars are -provided with sheaves m at or near the point where the wires or cables ,1 and J are attached to said bars. The rear end of said bars are provided with sheaves ,m,'it being observed that the frame of the'elevator is ,thus disposed 'midway between the said front and rear sheaves.

' weight of the elevator is swung past the.

When the elevator is to be folded, the wires or cables I are pulled over and aroundthe sheaves m, and the Windlass is then operated to windup the said wires or cables. As soon as the center, so that it begins to fall of its own accord toward the front of the machine, then the operator lets go of the Windlass, or rotatesthe same in the other direction, thus allowing the upper section of the elevator to descend of its own accord to the position .the elevator.

shown in Fig. '2. In this position the frame of, the elevator rests on the upperedges of the 'end boards (1, as shown, and the wires orcables are then released from the sheaves m by the simple lowering of The ection la fulcrums on the bearings 70 when the elevator is folded. Thus the lower section 70 is raised when the upper sect-ion is lowered. In this condition the elevator is ready for raising, and as soon as thexu'pper section. of the elevator wings up and past the' center, thenthe 'weight'thereof is sufficient to bring the elevator-of its own accord into the position shown in Fig. 1. Whether the elevator is to 'be"'raised or lowered, the operation is the same as far asthe Windlass is concerned. In

either case, the operator first winds up the cables and then pays the same out to complete the operation. ,lVhat I claim as my invention is:

1. In apparatus of the class specified, an upper section, a lower section, an elevator belt on said sections, a drive shaft on the upper section, bearings for said shaft, means for folding said upper section relative to the lower section, said shaft being releasable from said bearings to permit said folding operation.

2'. In apparatus of the class specified, an 'upper section, a lower section, a connection between the upper and lower sections, a support, links connecting the sections with said support, a'shaft on the lower end of the upper section, hearings on said support for said shaft, means for lowering the uiper section to a horizontal position, said siaft being releasable from said hearings to permit said lowering operation.

3. In-apparatus of the class specified, an upper section, a lower section, links for supporting said sections, bearings engaging said links to prevent lateral motion thereof,

means for folding the upper section relative to the lower section, and a releasable suppo rt for said upper section to permit foldmg.

4. An elevator comprising upper and lower sections, means for lowering the upper section, a fulcrumengaging the upper section between the ends thereof, means for raising the lower section by the lowering of the upper section, and a stationary support 'on which the lower section slides up and ,down at a varying angle.

5. In an elevator, an upper section, means for supporting the same, a lower section, a hinge connection between said sections, means for folding the upper section downward over the lower section, and a stationary support on .which the lower section slides up and down at a varying angle.

6. In an elevator, an upper section, a lower section, means for folding the upper section downward andv backward, means acting' on the upper section to raise the lower section when the upper section is, lowered. and a support on which the lower section slides up and down at a varying angle, the lower sections having hooks for engaging said support when the elevator is unfolded.

7. In anelevator, the combination of an upper section, a lowersection pivoted thereto, =links for supporting the pivotal connection, means for holding the lower section in position, a shaft on the upper section, a frame, releasable bearings on the frame for said shaft, fulcrum bearings for engaging the upper section to cause it to raise the lower section, when the shaft l S released from said bearings, means operated by said shaft for driving the elevator, a winding mason mechanism, and connections for raising and lowering the elevatdr. by one and the same and to be swung inward overthe standard,

hoisting mechanism comprising a cable extending between said pulleys and connected with the upper portion of said elevator frame, said cable being arranged to bear on said pulleys when the elevator frame is in operative position and when-the elevator frame is swungover said standard, and

means for operating said cable.

9. A folding elevator comprisingrastandard, pulleys carried, by said standard, a-folding elevator frame adapted to extend out lard and upward from said standard, andto be swung over the standard, hoisting; mechanism comprising a cableextending between said pulleys and connected with the upper portion of said elevator frame, said being arranged to bear on said pulleys when the elevator frame is in operative position and when the elevator frame is swiutirr over said standard, means for operating said cable, and means connected with said standard and with the lower portion of the elevator frame and movable .to permit move -ment of the same toward or from a vertical position.

10. In apparatus of the class specified, an upper section, a lower section, means including a driving shaft for supporting the upper section, an elevator belt on said sections, driven by said supporting" shaft, means for folding the upper section down ward to a position above the lower section, leaving the lower section in a substantially upright position, a wheeled vehicle, and a frame on the vehicle for supporting the upper section in horizontal position, the lower section extending below the ground line of the wheels when the elevator is in use, said vehicle being movable on its wheels when the upper section is horizontal and the lower section is thereby brought above the said ground line.

11. In apparatus of the class specified, an upper section, a lower section, an elevator belt on said sections, a joint between said sections, supporting, links secured to said joint, whereby the lower section is supported at its upper end, means for supportingsaid links, stationary means for holding the lower section in position, upon which the lower section slides up and down when theelevator is folded and unfolded, means for folding, the upper section downward to a position above thelower section, leaving the lower section in a substantially upright position, a wheeled vehicle, and a frame on the vehicle for supporting the cable upper section in horizontal position, the lower section extending below the ground line of the wheels when the elevator is in use, said vehicle being movable on its wheels when the upper section is horizontal and the lower section is thereby brought above the said ground line.

12. In an elevator, an upper section, a lower section pivoted thereto, me us for supporting said sections at the pivotal connection between them, means for inanipulating the upper section, to raise'and lowerthe same, fulcrum members for causing' the upper section toraise the lower section bodily when the elevator is folded, a body frame, and a transverse bar on which the lower section slides up and down during the folding and unfolding of said clevator.

13. In an elevator, the combination of an. upper section, a lower section pivotally connected therewith, means for supporting the sections at their pivotal connection, means on the upper section for driving the elevator, including a. combined support and driving shaft, a frame having bearings for said shaft, stationary means acting'on the upper section to raise the lower section when the elevator is folded, means whereby said shaft has bodily movement about two axes when the elevator is folded, one of said axis being movable about the other and mechanism for folding and unfolding the elevator, by raising and lowering the upper section thereof.

14. An elevator comprising a suitable support, an elevator frame comprising upper and lower members hinged together and adapted to extend outward and upward from said support, said members being movable independently of said support, the upper member being adapted to fold over upon said support, and means connecting the lower member with said support and upon which said lower member slides bodily upward when theuppcr member is folded over upon said support, the angle of said lower member being substantially the same for both positions thereof.

15. A folding elevator comprising a suitable supp'ort,a folding elevator frame composed of members hinged vtogether and adapted when in operative position to extend outward and u 'iward from said support, means including a driving shaft for supporting and holding said elevator frame uncmbcr of said elevator frame to said support, and movable to permit movement of the same toward or irom a vertical position, and hoisting mechanism mounted on said support and connected with the upper member of the elevator frame.

16. A-folding elevator comprising a suitable support, a folding elevator frame composed-of members hinged together, means connecting the lower member of the elevator fran with said support and arranged to permit .endwis'e movement thereof, said upper member being adapted to foldover upon said support, a stationary fulcrum on which :said upper member is adapted to bear between its ends when folded over upon said support, and means for driving the elevator, carried on said frame, and adapted to rest in operative position on said support when the elevator is running.

17. A folding elevator comprising a suitable standard, a folding elevator frame com-- posed of members hinged together, means connecting the lower member with sald standard and arranged to permit endwise.

movement thereof, said uppermember being adapted to foldover upon said standard, and a fulcrum carried by said standard, on which said upper member is adaptedto bear between itsends, when folded over said standard, a shaft for operating the elevator,

carried on one said member, and means rigidwlth said standard to engage said shaft and support the elevator in operating position. '18. The combination of a carriage, aj'suit- .able support mounted thereon, a folding elevator frame comprising upper and lower members hinged together, said upper memher being adapted to foldover upon said support, leaving the lower member suspended, stationary means having a sliding engagement avith the outer side of the lower frame'to move independently of said'support and operated by movement of the upper member into operative position for automatically moving the lower member into operative'position.

19. The combinatlon of a carriage, a suitable support mounted thereon, a folding elevator frame comprising upper and lower members hifiged together, said upper member being adapted to fold over upon said support, leaving the lower member suspend ed, a fixed horizontal bar upon which tl 1e, lower member shdes up and down when the elevator is folded and unfolded, andiineans connecting the lower member with the carriage and operated by the movement of the upper member into or out of operative position to move the lower member vertically and carry the lower end thereof toward or from the carriage.

20. A folding elevator comprising a suitable support, an elevator frame comprising upper and lower members adapted to cooperate when in operative position, the up-.

per member bein adapted to fold over upon said suppdrt and.

having a fulcrum thereon between its ends, means for automatically moving the lower member bodily relative to said support when the upper member is moved into or out of operative position, a shaft mounted for rotation on'said support, and means fixed on said frame to serve as bearin s for said shaft.

21. n elevator comprising a suitable support, an elevator frame comprising upper and lower members'hinged together, a fulcrum carried by said support on which said upper member is adapted to turn, and stationary means connecting said lower member with the support, upon which the lower member slides up and down, and whereon the same moves bodily upward when the uped position, devices for locking the frame to said support in upright position, said devices being disposed on. the upper member, and hoisting mechanism mounted on the siipport and connected with the upper memher, said hoisting mechanism being arranged to-operate to lift the upper member both when in its folded and when in its operative position. p

23., A folding elevator comprising a suitable support, a hinged elevator frame adapt-t ed to extend outward and upward from said support, swinging links pivotally connected at different points with said support and with the lower portion of the elevator frame, to permit movement of the same toward or from a vertical position, hoisting mechanism mounted on said support and connected with the upper portion of the elevator frame, and an endless conveyer mounted on the elevator frame, together with a shaft on the back of the elevator frame, connected with,

0 era-tin" osition. but ermittin the elev tor to fold and unfold. g,

25.- A folding elevator, a horizontal driving shaft on said elevator, a stationary support for each end portion of saidshaft, havmg means to permit bodily displacement of the shaft therefrom, when the elevator is folded, and means for supporting the elevator during the folding and unfolding thereof.

26. A folding elevator, provided with a jointed frame, stationary means forengaging said elevator elevator frame slides up and the folding and device for engaging said means, secured to the elevator, serving to hold the latter in operating position.

Signed b me at Chicago, Illinois, this 9th day of ay 1908.

} MORTON G. BUNNELL. Witnesses:

E. H. CLEGG, ALBERT J. SANsEo.

down during at all times, whereon the unfolding thereof, and 21- 

